Cut a Perfect Line With a diamond circular saw blade

Cut a Perfect Line With a diamond circular saw blade

1. Several pinch clamps. Depending on how long your boards are, you will need more or less. For a 2 meter board, you would want at least 4.

2. A thick, inflexible straight-edge that's at least as long as your work piece. This can be anything, provided it is straight, inflexible, and has an edge that your circular saw can butt up against without slipping off. Remember that your cut will only be as straight as your straight-edge.

3. Last but not least, your circular saw. One thing to note about circular saws is that if they have been dropped even once, are cheap, old, or have been used roughly, their blades are often out of alignment with the base-plate. This means that when you butt the side of the base plate up against something and begin cutting, because the blade isn't exactly parallel with the base-plate edge that you're using as the guide, the tail-end of the blade will either swing left or right cutting out a wider area from your work piece. So instead of slicing nicely through removing only the width of the blade, it will end up ripping out much more creating an uneven cut.